PACKAGING MATERIAL, PACKAGING BAG AND PACKAGE
Provided is a packaging material for packaging contents including fats and oils, the packaging material including: a barrier layer including a first polyolefin layer, an inorganic vapor-deposited layer, and a barrier coating layer; and a second polyolefin layer having heat-sealability, in which the first polyolefin layer includes a homopolymer layer and a copolymer layer.
1 . A packaging material for packaging contents including fats and oils, the packaging material comprising:
a barrier layer including a first polyolefin layer, an inorganic vapor-deposited layer, and a barrier coating layer; and
a second polyolefin layer having heat-sealability,
wherein the first polyolefin layer includes a homopolymer layer and a copolymer layer.
2 . The packaging material according to claim 1 , wherein the inorganic vapor-deposited layer includes at least either aluminum oxide or silicon oxide.
3 . The packaging material according to claim 1 , wherein the first polyolefin layer includes the homopolymer layer on the contents side.
4 . The packaging material according to claim 1 , wherein the first polyolefin layer includes a pair of the copolymer layers and the homopolymer layer between the copolymer layers.
5 . The packaging material according to claim 1 , further comprising a printed layer on opposite side of the barrier layer from the second polyolefin layer.
6 . A packaging bag formed from the packaging material according to claim 1 .
7 . A package comprising:
the packaging bag according to claim 6 ; and
contents including fats and oils packaged in the packaging bag.